Home / 22,186.31-30,609.83-15,813.90

Finding the Fourth Proportional to 22,186.31, 30,609.83 and 15,813.90

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Solution

The fourth proportional to 22,186.31, 30,609.83 and 15,813.90 is: 21,818.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,186.31 : 30,609.83 = 15,813.90 : x
  2. Step 2: Convert to fraction form
    22,186.31/30,609.83 = 15,813.90/x
  3. Step 3: Cross multiply
    22,186.31x = 30,609.83 × 15,813.90
  4. Step 4: Simplify right side
    22,186.31x = 484,060,830.17
  5. Step 5: Solve for x
    x = 484,060,830.17/22,186.31
  6. Step 6: Final answer
    x = 21,818.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.